Question

使用jquery怎么根据ID给元素赋值

Answer 1

如果是往div 里面插入内容的话 , $('#div_id').html('hello'); 或者 $('#div_id').text('hello');
如果是给表单赋值的话， $('input_id').val('hello');
如果是要改变属性的话， $('img_id').attr('src', 'a.jpg');

Answer 2

$("#ID").val(值);

Answer 3

方法/步骤
1
编写页面：
<input type="button" value="按价格" name="score" id="bypic" onclick="bypicord()">
<input type="hidden" value="desc" id="ordercon">
2
编写js:
<script type="text/javascript">
function bypicord(){
var reorder = $("#ordercon").val();
if("desc" == reorder){
$("#ordercon").val("asc");
var url = "<%=path %>/product/listproduct.action?uid="+${sessionScope.user.id}+"&sort=price&ten=Y&FROMBUS=Y&order=asc";
gotoquery(url);
//window.location.href =gotoquery('url');
}else {
$("#ordercon").val("desc");
reorder = "desc";
var url = "<%=path %>/product/listproduct.action?uid="+${sessionScope.user.id}+"&sort=price&ten=Y&FROMBUS=Y&order=desc";
gotoquery(url);
}

}

</script>
其中的：$("#ordercon").val("asc");就是给id为ordercon的元素赋值